Scraper.



Patented Nov. 27, IQUU.

2 Sheets-Sheet l.

EEGJL.

S C R A P E R.

(Application filed Feb, 14, 1900,

G. E. RICHARDSON.

(No Model.)

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FIGL.

W/ TNE SSE S No. 662,740. i Patented Nov. 27, |900.

G. E. IIGIIARDSOINI.V

,SCRAPEBK (Application filed Feb. 14, 1900.1 (No Model.) 2 Sheets-Sheet2.

W/TNESSES l /N VENTOH A 770HN YS w: Nonms PETERS co, PHUTQMTHQ,wAsHmaToN. n. c.

GEORGE E. RICHARDSON, OF CHIEF, MICHIGAN, ASSIGNOR TO HIMSELF AND GERMAND. COOK, OF SAME PLACE, AND JOHN T. RICHARDSON OF LAKE ANN, MICHIGAN.

SCRAPER.

SPECIFICATION forming part of Letters Patent No. 662,740, dated November27, 19010. Application filed February 14, 1900. Serial No. 5,215. (Nomodel.)

To all whom t may concern:

Be it known that I, GEORGE E. RICHARD- SON, a citizen of the UnitedStates, residing atChief, in the county of Manistee and State ofMichigan, have invented -a new and Improved Scraper, of which thefollowing is a full, clear, and exact description.

One object of the invention is to so improve upon the scraper for whichLetters Patent weregranted to me October 20, 1896, No. 569,887, that thescraper may be raised and lowered at either the front or the back bymeans of mechanism operated at the axle.

Another purpose of the invention is to evenly balance the scraper, andthus avoid lift on the neck of the draft-animals, as the draft will bebeneath the tongue.

A further purpose is to so construct the scraper that it will be light,strong, and simple, and to so mount the scraper that it will in nomanner interfere with the driver in the guidance of his team.

The invention consists in the novel construction and combination of theseveral parts, as will he hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a perspective view of a scraper embodying the features of myinvention. Fig. 2 is a longitudinal section through the scraper on asmaller scale than in Fig. 1, and Fig. 3 is a longitudinal sectionalview of the improvement.

A represents a frame upon which an axle is mounted, the axle beingeither straight or crooked, and wheels 11 are mounted to turn on saidaxle. Each of the wheels 1l is provided with a toothed wheel 12, securedupon the inner port-ion of its hub. A tongue 13 is secured to the frameA in any suitable or approved manner, and a seat 14 for the driver ismounted on the said tongue at the rear end thereof. A main driving-shaft15 extends transversely of the frame A, and the said driving-shaftis'mounted to turn in boxes 16, attached by brackets 17 or theirequivalents to the upper portion of the frame. A gearwheel 18 is looselymounted at each end of the shaft l5, and said gear-wheels mesh with thetoothed wheels 12, carried by the hubs of the supporting-wheels 11. Eachof the gearwheels 18 on the drive-shaft is provided with aclutch-surface at its inner face, adapted for engagement with clutches19, mounted to turn with the shaft and slide thereon. The clutches 1f)are so arranged that they drive the shaft i5 while the machine is beingdrawn forward; but when the machine is backed the clutches 19 simplyslip over the ratchet-sur faces of the wheels 18, and the said wheelshave no effect on the shaft l5. The clutches 19 are held in engagementwith the ratchetsurfaces of the gears 18 through the medium of springs20, the said springs being located between the boxes 16 and thehubportions of the clutches 1.9. The shaft l5 is prevented from having endmovement by securing collars 2l on the said shaft at the inner sides ofthe boxes 16.

A driven shaft 22 is journaled in suitable bearings on the upper portionof the frame A, near the front, and a like shaft 23 is similarlyjournaled at the rear portion of the said frame, and the main shaft l5is between the two shafts 22 and 23 and at an elevation above the same.The shafts 22 and 23 are employed for raising and lowering,respectively, the forward and the rear ends of the scraper B, to behereinafter described. A pinion 24C is secured to each end of the shaft22, and a pinion 25 is attached in like manner to the rear shaft23. Theshaft 22 is also provided with a ratchet-wheel 26, and the shaft alsocarriesa ratchet-wheel 27, the ratchet-wheels and the pinions beingsecured firmly to the shafts 22 and 23. A dog 2G is pivoted on the frameand is arranged for engagement at one of its ends with the ratchet-Wheel26, while a second dog 27, also pivoted on the frame, is adapted forengagement with the ratchet-wheel 27 on the shaft 23, and each dog isprovided with au outwardly-extending arm 28. These arms are held upwardby springs 29,the springs serving to hold the dogs in engagement withthe said ratchet-wheels.

Each one of the dogs may be thrown out of engagement with itsratchet-wheel through the medium of a lever 30, the lever beingfulcrumed upon the frame A between the dogs, and the said lever isprovided with a hori zontal foot 31, which is carried over the eX-tensions 28 from the dogs 26a and 27a. Thus by carrying the lever to therear the rear dog is released from the ratchet-wheel 27, and when thelever is carried forward the forward dog 2oL is disengaged from itsratchetwheel 26, and the shafts 22 and 23 are thus released and are freeto turn and permit the end of the scraper connected therewith to fall indirection of the ground.

A sprocket-wheel 32 is secured to the shaft Y 23, and a similar wheel 33is fastened on the shaft 22, as shown in Fig. 1. The sprocketwheel 32 onthe shaft 23 is connected by a chain belt 3S with a largersprocket-wheel 34, loosely mounted on the drive-shaft 15, and a belt 37connects the said sprocket-wheel 33 on the shaft 22 with asprocket-wheel 36, loosely mounted on the drive-shaft 15. The two wheels34 and 36 on the drive-shaft 15 are placed one at each side of thecenter of the shaft and have ratchet or clutch surfaces upon their innerfaces, the ratchet-surface on the wheel 34 being designated as 34,whilethe corresponding surface of the wheel 36 is designated as 36a, as shownin Fig. 1. A

double clutch 38a, mounted to slide on the drive-shaft 15 and turntherewith, is located between the two wheels 34 and 36, as is also shownin Fig. 1, and this clutch 38a may be either carried in engagement withthe clutchsurface on the wheel 36 to revolve the shaft 22 or said clutch33 may be carried in contact with the clutch-surface 34 on a wheel 34 torevolve the rear shaft 23, and in this manner either the forward or therear end of the scraper B is elevated by the action of the drive-shaftdriven from the supporting-wheels of the machine. A shifting lever 39 isenv ployed in connection with the clutch 3S, and this shifting lever isadapted for engagement with a suitable rack 39% The scraper B consistsof a bottom, as is usual, and side sections, together with a back 40,the back being in the form of a gate held to slide in guides 40a,carried by the side portions of the scraper, and said gate 40 isprovided with a chain 40", which is carried upward and suitably attachedto the standard of the seat 14, so that the occupant of the seat mayraise the gate 40 at any time and permit the load in the scraper to bedumped out at the rear thereof when the frontL portion of the scraperhas been elevated and its rear portion lowered. The scraper is raisedand lowered by attaching racks 43 to its side portions near the frontand attaching a second set of racks 44 to the sides of the scraper atitsrear. These racks extend up through suitable guide-slots in the frame,the forward set of racks engaging with the pinions 24 on the forwardshaft 22, while' the rear set of racks engage with the pinions 25 on therear shaft 23.

The scraper is guided in its upward-anddownward movement by pins 41,secured to its sides at or near the center, which pins enter and havemovement in slots made in guide bars 42, attached to and extendingdownward, preferably from the under surface of the axle l0. The forwardend of the scraper is connected with thertongue or pole 13, usuallythrough the medium of chains 45, which extend from the sides of thescraper at its forward end to a keeper attached to the pole or tongue,as is also shown in Fig. 1.

Having thus described my invention, I claim as new and desire to secureby Letters Patentl. A wheel-supported frame, a drive-shaft receivingmotion from the supporting-wheels of the frame, lifting-shafts, adriving connection between the lifting-shafts and the driveshaft foralternately operating the liftingshafts, and a scraper having itsforward end portion controlled by one of the lifting-shafts and its rearend portion controlled by the second liftingshaft,the said shafts actingto raise the said scraper or permit the same to drop, as described.

2. A Wheel-supported frame, a drive-shaft, a driving connection betweenthe supportingwheels of the frame and the drive-shaft, driven shafts, adriving connection between the driven shafts and drive-shaft, saiddriving connection including a clutch and means for shifting the same,pinions carried by lthe driven shafts, a scraper, racks carried bythescraper and engaging with said pinions, ratchet-wheels carried by thedriven shafts, dogs engaging with the said ratchet-wheels, and a tripdevice for the said dogs, for the purpose specified.

3. The combination, with a wheel-supported frame, a drive-shaft carriedby the said frame and driven from a supporting-wheel of the frame, and adriven shaft at each side of the drive-shaft, the driven shafts beingpro-- vided with pinions at their ends, wheels loosely mounted on thedriven shaft, said wheels having clutch-faces, a clutch mounted on thedrive-shaft and adapted for engagement with the clutch-surface of eitherof the loosely-mounted wheels, and a driving connection between theloosely-mounted wheels and the driven shafts, of a scraper, means forguiding the same, racks secured to the said scraper, engaging with thepinions on the driven shaft,gratchetwheels carried by the driven shaft,dogs for the said ratchet-wheels, and a lever arranged to operate eachof the said dogs in a manner to release either of them from engagementwith a ratchet-wheel, for the purpose specified.

4. In a scraper, the combination with the lifting-shafts, and aratchet-wheel on each shaft, of pivoted and spring-pressed pawlsengaging the ratchet-wheels, and a lever for engaging the pawls to throwthem out of en- IOO IIO

1o arms of the pawls and provided with a foot for engaging the saidarms, substantially as described.

In testimony whereof I have signed my neme to this specication in thepresence of two subscribing witnesses.

GEORGE E. RICHARDSON.

Witnesses:

HIRAM AXTELL, JULIA CHARLARNEAU.

